CYFRE White 700-2500 mhz Dual Band Cell Phone Car Trucker Home Full Antenna Kit White Quad Band Glass Mount 13" 5dB Car Truck Cell Phone Antenna Signal Booster Simply stick the outdoor antenna on the back window and the indoor receiver on the inside mirror side of the window (must be facing each other), run the wire to preferred location and connect to the Patch antenna. Please note: patch antenna must be as close as possible to the cell phone (you can even attach it using provided Velcro directly to the back of your Cell phone.) Will work with all phones on all US carriers on these frequencies: 700MHz / 2700MHz GSM / CDMA / PCS / DCS / UMTS/ WCDMA / LTE